Sickle-grinder



(Model.) P. W. KRAUSE.

y Sickle-Grinder. No. 227,366. Patented May 11, i880.

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.PETERS. PM OTOJJTMOGRAPNER. WASHINGTON D C UNITED STATES PATENT OFFICE.

FREDERICK W. KRAUSE, )F CHICAGO, ILLINOIS.k

SICKLE-GRINDER.

SPECIFICATION forming part of Letters Patent No. 227,366, dated May 11,1880.

Application filed March 5, 1880.

To all whom it may concern:

Be it known that I, FREDERICK W. KEAUSE, of Chicago, in the county ofCook and State of Illinois, have invented a new and useful Improvementin Sickle-Grinders, of which the following` is a specilieation,reference being had to the accompanyingdrawings, illustrating theimprovement, in which- Figure l is an end elevation of myirnprovementattached to the end of the grindstoneframe, so that the grinding may bedone on the periphery of the stone. Fig. 2 is a plan or top view of theimprovement and a broken view of the grindstone and the frame to whichit is hung. Fig. 3 is a vertical section through the socket-stand andclamping-bar on line Z, Fig. 2. Fig. 4 is an elevation of one of 4thethumbcams for fastening the sickle to the clamping-bar. Fig. 5 is a Viewof the thumb-cam on line X, Fig. 4, looking down.

The principal features of the present invention consist in aball-andsocket joint for giving the desired movement to the clampingbarto which the sickle is attached, in combi nation withan adj Listing-barwhich is attached to Jthe socket-plate of the ball-joint and has a.partial revolution in a horizontal plane, whereby the sickle-clamp maybe brought to or from the peripheryT ofthe stone, and by the samemovement adjusted laterally with reference to the stone, by means ofwhich the sickle may occupy any desired position on the stone forgrinding suitable bevels.

A A represent the two sides'of an ordinary grindstoneframe, and B theends thereof. C represents a socket-stand of Ordin ary construction,which in this instance is attached to the end rail, B, of thegrindstone-frame.

D is a ball forming, with the part C, a balland-socket joint. This ballis provided with (Model.)

a shank, E, which'is rigidly affixed to a clamp ing-bar, F. The insideof this bar is provided with a groove, G, Figs. l, 2, and 3, in whichthe bar ofthe sickle lis put, the sickle-blades projecting somewhatbeyond the bar.

Thumb-cams .I are put through ears K, formed on the bar F, so ,that byturning the cams the sickle is rmly iiXed to the bar F.

The socket-standC is combined with a slotted setbar, L, which may bemoved so as to adjust the socket-stand to any desired position. Thisconstruction is such that by means ofthe adjustment attained by theball-and-socket. joint and the set-bar L a greater range of bevels maybe presented to the stone. and at the same time a great accuracy ofgrinding is attained.

The socket-stand C may be attached to the side ot' the grindstone-frameand answer the purpose well where sickles are to be groundI on the atsideof the stone, the only change required being in the thumbcams, whichmust be eccentric on their peripheries.

p I claim and desire to secure by Letters Patent of the United States-The ball-and-socket jointC D, for giving to the sickle-clamp F anydesired position to bring the sickle to the periphery ofthe stone, so asto attain the requisite bevel to the knives, in combination with theadjusting-bar L, attached to the socket of the ball-joint, andadjustable to any desired position in a horizontal plane, and longitudinally adjustable to carry the sickle-clamp to or from the stone,as and for the purpose specitied.

FREDERICK vW. KRAUSE.

Witnesses G. L. CHAPIN, A. G. MOREY.

